     .img-btn{
		 background-color: rgba(0,0,0,0.0);
		 border: 0px;
	 }
	 
	 
	 
	 
	  /*模态框主体样式*/
        .modalu {
	
            display: none;
            position: fixed;
            z-index: 1;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            overflow: auto;
            background-color: rgba(0, 0, 0, 0.5);
        }

        /*模态框公共样式*/
        .modal-contentu {
				border-radius: 10px;	
            background-color: #fefefe;
            margin: 50px auto 0;
            padding: 20px;
            border: 1px solid #888;
            box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
            animation: modal-show 0.3s;
        }

        /* 正常大小 */
        .modal-normalu {
            width: 600px;
        }

        /* 中等大小 */
        .modal-medium {
            width: 400px;
        }

        /* 迷你大小 */
        .modal-mini {
            width: 250px;
        }

        /* 隐藏 */
        .modal-hideu {
            animation: modal-hideu 0.3s;
        }

        /* 展示动画 */
        @keyframes modal-showu {
            from {
                opacity: 0;
                transform: translateY(-50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* 隐藏动画 */
        @keyframes modal-hideu {
            from {
                opacity: 1;
                transform: translateY(0);
            }
            to {
                opacity: 0;
                transform: translateY(-50px);
            }
        }

        /*关闭按钮*/
        .closeu{
            color: #aaa;
            float: right;
            font-size: 28px;
            font-weight: bold;
            cursor: pointer;
            -webkit-tap-highlight-color: rgba(255,0,0,0);
        }

        /*关闭按钮的鼠标点击和经过样式*/
        .closeu:hover,
        .closeu::after
		:focus {
            color: black;
            text-decoration: none;
            cursor: pointer;
            -webkit-tap-highlight-color: rgba(255,0,0,0);
        }